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Finding the Fourth Proportional to 248,578.77, 343,041.05 and 141,151.06

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Solution

The fourth proportional to 248,578.77, 343,041.05 and 141,151.06 is: 194,789.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,578.77 : 343,041.05 = 141,151.06 : x
  2. Step 2: Convert to fraction form
    248,578.77/343,041.05 = 141,151.06/x
  3. Step 3: Cross multiply
    248,578.77x = 343,041.05 × 141,151.06
  4. Step 4: Simplify right side
    248,578.77x = 48,420,606,286.10
  5. Step 5: Solve for x
    x = 48,420,606,286.10/248,578.77
  6. Step 6: Final answer
    x = 194,789.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.